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Talebpour C, Fani F, Laliberté-Riverin S, Vaidya R, Salimnia H, Alamdari H, Ouellette M. Long-Term Prevention of Arthroplasty Infections via Incorporation of Activated AgNbO 3 Nanoparticles in PMMA Bone Cement. ACS APPLIED BIO MATERIALS 2024; 7:4039-4050. [PMID: 38830835 DOI: 10.1021/acsabm.4c00373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
We investigated the possibility of loading PMMA bone cement with antimicrobial nanostructured AgNbO3 particles to counter biofilm formation at the cement-tissue interface. We found that a formulation containing (1-4)% AgNbO3 showed high antibacterial activity against Gram-positive Staphylococcus aureus and Gram-negative Pseudomonas aeruginosa while not showing any toxicity against THP1 human cell lines. In addition, loading the particles did not impact the mechanical properties of the cement. The results thus obtained illustrate the potential of the approach to replace the current technique of mixing cement with conventional antibiotics, which is associated with shortcomings such as efficacy loss from antibiotic depletion.
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Affiliation(s)
- Cyrus Talebpour
- Department of Mining, Metallurgical and Materials Engineering, Universitė Laval, 1065, av. de la Médecine, Québec G1 V 0A6, Canada
| | - Fereshteh Fani
- Centre de recherche en infectiologie du CHU de Québec and Department of Microbiology and Immunology, Faculté de Medicine, Université Laval, 2705 Boul. Laurier, Québec G1V4G2, Canada
| | - Simon Laliberté-Riverin
- Department of Mining, Metallurgical and Materials Engineering, Universitė Laval, 1065, av. de la Médecine, Québec G1 V 0A6, Canada
| | - Rahul Vaidya
- School of Medicine, Wayne State University, 540 E, Canfield Avenue, Detroit, Michigan 48201, United States
| | - Hossein Salimnia
- Department of Pathology, Children's Hospital of Michigan, 3901 Beaubien, Detroit 48201, Michigan, United States
| | - Houshang Alamdari
- Department of Mining, Metallurgical and Materials Engineering, Universitė Laval, 1065, av. de la Médecine, Québec G1 V 0A6, Canada
| | - Marc Ouellette
- Centre de recherche en infectiologie du CHU de Québec and Department of Microbiology and Immunology, Faculté de Medicine, Université Laval, 2705 Boul. Laurier, Québec G1V4G2, Canada
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Ng MK, Kobryn A, Emara AK, Krebs VE, Mont MA, Piuzzi NS. Decreasing trend of inpatient mortality rates of aseptic versus septic revision total hip arthroplasty: an analysis of 681,034 cases. Hip Int 2023; 33:1063-1071. [PMID: 36480921 DOI: 10.1177/11207000221140346] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND While most revision total hip arthroplasties (rTHAs) are for aseptic loosening/instability, infection accounts for approximately 16%. The purpose of this study was to: (1) quantify mortality rates of aseptic versus septic rTHA; (2) determine if mortality rates have changed over the past 20 years; and (3) identify associated preoperative risk factors, focusing on the utility/validity of the Elixhauser comorbidity index (ECI). METHODS ICD-9/ICD-10 codes were used to identify patients undergoing rTHA in the National Inpatient Sample database between 1998 and 2017. A total of 681,034 cases (576,143 aseptic THA and 104,891 septic THA) were identified. For each patient, demographic variables including age, sex, race, insurance type, ECI, and inhospital mortality were gathered. A logistic regression model was constructed to assess risk of inhospital mortality. RESULTS From 1998 to 2017, inpatient mortality rates of aseptic and septic rTHA decreased from 0.83 to 0.45%, and from 2.58 to 1.24%, respectively. Septic rTHA was independently associated with higher odds of mortality relative to aseptic (odds ratio (OR): 2.305, 95% confidence interval (CI): (2.014, 2.638), p < 0.0001). Increased ECI was associated with higher odds of mortality at both medium (OR: 5.147, 95% CI: (4.433,5.977), p < 0.0001) and high index scores (OR: 13.714, 95% CI: (11.519,16.326), p < 0.0001). CONCLUSIONS Mortality rates for both aseptic and septic rTHA have been declining over the past 20 years, potentially due to patient selection guidelines and advances in medical management. Our study confirms that the ECI is independently associated with increased inpatient mortality.
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Affiliation(s)
- Mitchell K Ng
- Department of Orthopaedic Surgery, Maimonides Medical Center, Brooklyn, New York, USA
| | - Andriy Kobryn
- Department of Orthopaedic Surgery, SUNY Downstate Medical Center, Brooklyn, New York, USA
| | - Ahmed K Emara
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH, USA
| | - Viktor E Krebs
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH, USA
| | - Michael A Mont
- Sinai Hospital of Baltimore, Rubin Institute for Advanced Orthopedics, Baltimore, MD, USA
| | - Nicolas S Piuzzi
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH, USA
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Levine BR. Surveillance and Early Intervention Are Paramount After Revision THA in Octogenarians: Commentary on an article by Justin A. Magnuson, MD, et al.: "Revision Total Hip Arthroplasty in Octogenarians Compared with Septuagenarians. Is There a Real Difference?". J Bone Joint Surg Am 2023; 105:e42. [PMID: 37584651 DOI: 10.2106/jbjs.23.00552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/17/2023]
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Bloch BV, Matar HE, Berber R, Gray WK, Briggs TWR, James PJ, Manktelow ARJ. The impact of a revision arthroplasty network on patient outcomes. Bone Joint J 2023; 105-B:641-648. [PMID: 37257848 DOI: 10.1302/0301-620x.105b6.bjj-2022-0931.r1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Aims Revision total knee arthroplasty (rTKA) and revision total hip arthroplasty (rTHA) are complex procedures with higher rates of re-revision, complications, and mortality compared to primary TKA and THA. We report the effects of the establishment of a revision arthroplasty network (the East Midlands Specialist Orthopaedic Network; EMSON) on outcomes of rTKA and rTHA. Methods The revision arthroplasty network was established in January 2015 and covered five hospitals in the Nottinghamshire and Lincolnshire areas of the East Midlands of England. This comprises a collaborative weekly multidisciplinary meeting where upcoming rTKA and rTHA procedures are discussed, and a plan agreed. Using the Hospital Episode Statistics database, revision procedures carried out between April 2011 and March 2018 (allowing two-year follow-up) from the five network hospitals were compared to all other hospitals in England. Age, sex, and mean Hospital Frailty Risk scores were used as covariates. The primary outcome was re-revision surgery within one year of the index revision. Secondary outcomes were re-revision surgery within two years, any complication within one and two years, and median length of hospital stay. Results A total of 57,621 rTHA and 33,828 rTKA procedures were performed across England, of which 1,485 (2.6%) and 1,028 (3.0%), respectively, were conducted within the network. Re-revision rates within one year for rTHA were 7.3% and 6.0%, and for rTKA were 11.6% and 7.4% pre- and postintervention, respectively, within the network. This compares to a pre-to-post change from 7.4% to 6.8% for rTHA and from 11.7% to 9.7% for rTKA for the rest of England. In comparative interrupted time-series analysis for rTKA there was a significant immediate improvement in one-year re-revision rates for the revision network compared to the rest of England (p = 0.024), but no significant change for rTHA (p = 0.504). For the secondary outcomes studied, there was a significant improvement in trend for one- and two-year complication rates for rTHA for the revision network compared to the rest of England. Conclusion Re-revision rates for rTKA and complication rates for rTHA improved significantly at one and two years with the introduction of a revision arthroplasty network, when compared to the rest of England. Most of the outcomes studied improved to a greater extent in the network hospitals compared to the rest of England when comparing the pre- and postintervention periods.
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Affiliation(s)
- Benjamin V Bloch
- Nottingham Elective Orthopaedic Services, Nottingham University Hospitals NHS Trust, Nottingham, UK
- School of Medicine, University of Nottingham, Nottingham, UK
| | - Hosam E Matar
- Nottingham Elective Orthopaedic Services, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Reshid Berber
- Nottingham Elective Orthopaedic Services, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - William K Gray
- Getting it Right First Time Programme, NHS England, London, UK
| | - Timothy W R Briggs
- Getting it Right First Time Programme, NHS England, London, UK
- NHS England, London, UK
- Royal National Orthopaedic Hospital, Stanmore, UK
| | - Peter J James
- Nottingham Elective Orthopaedic Services, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Andrew R J Manktelow
- Nottingham Elective Orthopaedic Services, Nottingham University Hospitals NHS Trust, Nottingham, UK
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McPherson EJ, Stavrakis AI, Chowdhry M, Curtin NL, Dipane MV, Crawford BM. Biphasic bone graft substitute in revision total hip arthroplasty with significant acetabular bone defects : a retrospective analysis. Bone Jt Open 2022; 3:991-997. [PMID: 36545948 PMCID: PMC9783269 DOI: 10.1302/2633-1462.312.bjo-2022-0094.r1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
AIMS Large acetabular bone defects encountered in revision total hip arthroplasty (THA) are challenging to restore. Metal constructs for structural support are combined with bone graft materials for restoration. Autograft is restricted due to limited volume, and allogenic grafts have downsides including cost, availability, and operative processing. Bone graft substitutes (BGS) are an attractive alternative if they can demonstrate positive remodelling. One potential product is a biphasic injectable mixture (Cerament) that combines a fast-resorbing material (calcium sulphate) with the highly osteoconductive material hydroxyapatite. This study reviews the application of this biomaterial in large acetabular defects. METHODS We performed a retrospective review at a single institution of patients undergoing revision THA by a single surgeon. We identified 49 consecutive patients with large acetabular defects where the biphasic BGS was applied, with no other products added to the BGS. After placement of metallic acetabular implants, the BGS was injected into the remaining bone defects surrounding the new implants. Patients were followed and monitored for functional outcome scores, implant fixation, radiological graft site remodelling, and revision failures. RESULTS Mean follow-up was 39.5 months (36 to 71), with a significant improvement in post-revision function compared to preoperative function. Graft site remodelling was rated radiologically as moderate in 31 hips (63%) and strong in 12 hips (24%). There were no cases of complete graft site dissolution. No acetabular loosening was identified. None of the patients developed clinically significant heterotopic ossification. There were twelve reoperations: six patients developed post-revision infections, three experienced dislocations, two sustained periprosthetic femur fractures, and one subject had femoral component aseptic loosening. CONCLUSION Our series reports bone defect restoration with the sole use of a biphasic injectable BGS in the periacetabular region. We did not observe significant graft dissolution. We emphasize that successful graft site remodelling requires meticulous recipient site preparation.Cite this article: Bone Jt Open 2022;3(12):991-997.
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Affiliation(s)
- Edward J. McPherson
- Department of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, Santa Monica, California, USA
| | - Alexandra I. Stavrakis
- Department of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, Santa Monica, California, USA
| | - Madhav Chowdhry
- Nuffield Department of Primary Care Health Sciences & Department of Continuing Education, Kellogg College, University of Oxford, Oxford, UK
| | - Nora L. Curtin
- Department of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, Santa Monica, California, USA
| | - Matthew V. Dipane
- Department of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, Santa Monica, California, USA,Correspondence should be sent to Matthew V. Dipane. E-mail:
| | - Brooke M. Crawford
- Department of Orthopedic Surgery, The University of Miami Miller School of Medicine, Miami, Florida, USA
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Jin X, Gallego Luxan B, Hanly M, Pratt NL, Harris I, de Steiger R, Graves SE, Jorm L. Estimating incidence rates of periprosthetic joint infection after hip and knee arthroplasty for osteoarthritis using linked registry and administrative health data. Bone Joint J 2022; 104-B:1060-1066. [PMID: 36047015 PMCID: PMC9948458 DOI: 10.1302/0301-620x.104b9.bjj-2022-0116.r1] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
AIMS The aim of this study was to estimate the 90-day periprosthetic joint infection (PJI) rates following total knee arthroplasty (TKA) and total hip arthroplasty (THA) for osteoarthritis (OA). METHODS This was a data linkage study using the New South Wales (NSW) Admitted Patient Data Collection (APDC) and the Australian Orthopaedic Association National Joint Replacement Registry (AOANJRR), which collect data from all public and private hospitals in NSW, Australia. Patients who underwent a TKA or THA for OA between 1 January 2002 and 31 December 2017 were included. The main outcome measures were 90-day incidence rates of hospital readmission for: revision arthroplasty for PJI as recorded in the AOANJRR; conservative definition of PJI, defined by T84.5, the PJI diagnosis code in the APDC; and extended definition of PJI, defined by the presence of either T84.5, or combinations of diagnosis and procedure code groups derived from recursive binary partitioning in the APDC. RESULTS The mean 90-day revision rate for infection was 0.1% (0.1% to 0.2%) for TKA and 0.3% (0.1% to 0.5%) for THA. The mean 90-day PJI rates defined by T84.5 were 1.3% (1.1% to 1.7%) for TKA and 1.1% (0.8% to 1.3%) for THA. The mean 90-day PJI rates using the extended definition were 1.9% (1.5% to 2.2%) and 1.5% (1.3% to 1.7%) following TKA and THA, respectively. CONCLUSION When reporting the revision arthroplasty for infection, the AOANJRR substantially underestimates the rate of PJI at 90 days. Using combinations of infection codes and PJI-related surgical procedure codes in linked hospital administrative databases could be an alternative way to monitor PJI rates.Cite this article: Bone Joint J 2022;104-B(9):1060-1066.
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Affiliation(s)
- Xingzhong Jin
- Centre for Big Data Research in Health, University of New South Wales, Sydney, Australia,Sydney Musculoskeletal Health, Kolling Institute, The University of Sydney, Sydney, Australia,Correspondence should be sent to Xingzhong Jin. E-mail:
| | - Blanca Gallego Luxan
- Centre for Big Data Research in Health, University of New South Wales, Sydney, Australia
| | - Mark Hanly
- Centre for Big Data Research in Health, University of New South Wales, Sydney, Australia
| | - Nicole L. Pratt
- Quality Use of Medicines and Pharmacy Research Centre, Clinical and Health Sciences, University of South Australia, Adelaide, Australia
| | - Ian Harris
- Australian Orthopaedic Association National Joint Replacement Registry, South Australian Health and Medical Research Institute, Adelaide, Australia,Ingham Institute for Applied Medical Research, South Western Sydney Clinical School, University of New South Wales, Sydney, Australia
| | - Richard de Steiger
- Australian Orthopaedic Association National Joint Replacement Registry, South Australian Health and Medical Research Institute, Adelaide, Australia,Department of Surgery, Epworth HealthCare, University of Melbourne, Melbourne, Australia
| | - Stephen E. Graves
- Quality Use of Medicines and Pharmacy Research Centre, Clinical and Health Sciences, University of South Australia, Adelaide, Australia,Australian Orthopaedic Association National Joint Replacement Registry, South Australian Health and Medical Research Institute, Adelaide, Australia
| | - Louisa Jorm
- Centre for Big Data Research in Health, University of New South Wales, Sydney, Australia
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Innocenti M, Smulders K, Willems JH, Goosen JHM, van Hellemondt G. Patient-reported outcome measures, complication rates, and re-revision rates are not associated with the indication for revision total hip arthroplasty : a prospective evaluation of 647 consecutive patients. Bone Joint J 2022; 104-B:859-866. [PMID: 35775171 DOI: 10.1302/0301-620x.104b7.bjj-2021-1739.r1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIMS The aim of this study was to explore the relationship between reason for revision total hip arthroplasty (rTHA) and outcomes in terms of patient-reported outcome measures (PROMs). METHODS We reviewed a prospective cohort of 647 patients undergoing full or partial rTHA at a single high-volume centre with a minimum of two years' follow-up. The reasons for revision were classified as: infection; aseptic loosening; dislocation; structural failure; and painful THA for other reasons. PROMs (modified Oxford Hip Score (mOHS), EuroQol five-dimension three-level health questionnaire (EQ-5D-3L) score, and visual analogue scales for pain during rest and activity), complication rates, and failure rates were compared among the groups. RESULTS The indication for revision influenced PROMs improvement over time. This finding mainly reflected preoperative differences between the groups, but diminished between the first and second postoperative years. Preoperatively, patients revised due to infection and aseptic loosening had a lower mOHS than patients with other indications for revision. Pain scores at baseline were highest in patients being revised for dislocation. Infection and aseptic loosening groups showed marked changes over time in both mOHS and EQ-5D-3L. Overall complications and re-revision rates were 35.4% and 9.7% respectively, with no differences between the groups (p = 0.351 and p = 0.470, respectively). CONCLUSION Good outcomes were generally obtained regardless of the reason for revision, with patients having the poorest preoperative scores exhibiting the greatest improvement in PROMs. Furthermore, overall complication and reoperation rates were in line with previous reports and did not differ between different indications for rTHA. Cite this article: Bone Joint J 2022;104-B(7):859-866.
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Affiliation(s)
- Matteo Innocenti
- Department of Orthopaedic Surgery, University of Florence, Florence, Italy
| | - Katrijn Smulders
- Department of Research, Sint Maartenskliniek, Nijmegen, the Netherlands
| | - Jore H Willems
- Department of Orthopaedic Surgery, Sint Maartenskliniek, Nijmegen, the Netherlands
| | - Jon H M Goosen
- Department of Orthopaedic Surgery, Sint Maartenskliniek, Nijmegen, the Netherlands
| | - Gijs van Hellemondt
- Department of Orthopaedic Surgery, Sint Maartenskliniek, Nijmegen, the Netherlands
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Grothe T, Günther KP, Hartmann A, Blum S, Haselhoff R, Goronzy J. The incidence of adverse local tissue reaction due to head taper corrosion after total hip arthroplasty using V40 taper and 36 mm CoCr head. Bone Joint J 2022; 104-B:852-858. [PMID: 35775169 DOI: 10.1302/0301-620x.104b7.bjj-2021-1769.r1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIMS Head-taper corrosion is a cause of failure in total hip arthroplasty (THA). Recent reports have described an increasing number of V40 taper failures with adverse local tissue reaction (ALTR). However, the real incidence of V40 taper damage and its cause remain unknown. The aim of this study was to evaluate the long-term incidence of ALTR in a consecutive series of THAs using a V40 taper and identify potentially related factors. METHODS Between January 2006 and June 2007, a total of 121 patients underwent THA using either an uncemented (Accolade I, made of Ti12Mo6Zr2Fe; Stryker, USA) or a cemented (ABG II, made of cobalt-chrome-molybdenum (CoCrMo); Stryker) femoral component, both with a V40 taper (Stryker). Uncemented acetabular components (Trident; Stryker) with crosslinked polyethylene liners and CoCr femoral heads of 36 mm diameter were used in all patients. At a mean folllow-up of 10.8 years (SD 1.1), 94 patients (79%) were eligible for follow-up (six patients had already undergone a revision, 15 had died, and six were lost to follow-up). A total of 85 THAs in 80 patients (mean age 61 years (24 to 75); 47 (56%) were female) underwent clinical and radiological evaluation, including the measurement of whole blood levels of cobalt and chrome. Metal artifact reduction sequence MRI scans of the hip were performed in 71 patients. RESULTS A total of 20 ALTRs were identified on MRI, with an incidence of 26%. Patients with ALTR had significantly higher median Co levels compared with those without ALTR (2.96 μg/l (interquartile range (IQR) 1.35 to 4.98) vs 1.44 μg/l (IQR 0.79 to 2.5); p = 0.019). Radiological evidence of osteolysis was also significantly associated with ALTR (p = 0.014). Median Cr levels were not significantly higher in those with ALTR compared with those without one (0.97 μg/l (IQR 0.72 to 1.9) v 0.67 μg/l (IQR 0.5 to 1.19; p = 0.080). BMI, sex, age, type of femoral component, head length, the inclination of the acetabular component, and heterotopic ossification formation showed no significant relationship with ALTR. CONCLUSION Due to the high incidence of local ALTR in our cohort after more than ten years postoperatively, we recommend regular follow-up investigation even in asymptomatic patients with V40 taper and metal heads. As cobalt levels correlate with ALTR occurrence, routine metal ion screening and consecutive MRI investigation upon elevation could be discussed. Cite this article: Bone Joint J 2022;104-B(7):852-858.
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Affiliation(s)
- Tim Grothe
- Centre of Orthopaedics, Trauma and Plastic Surgery, University Hospital Carl Gustav Carus, Technical University Dresden, Dresden, Germany
| | - Klaus-Peter Günther
- Centre of Orthopaedics, Trauma and Plastic Surgery, University Hospital Carl Gustav Carus, Technical University Dresden, Dresden, Germany
| | - Albrecht Hartmann
- Centre of Orthopaedics, Trauma and Plastic Surgery, University Hospital Carl Gustav Carus, Technical University Dresden, Dresden, Germany
| | - Sophia Blum
- Department of Radiology, University Hospital Carl Gustav Carus, Technical University Dresden, Dresden, Germany
| | - Richard Haselhoff
- Centre of Orthopaedics, Trauma and Plastic Surgery, University Hospital Carl Gustav Carus, Technical University Dresden, Dresden, Germany
| | - Jens Goronzy
- Centre of Orthopaedics, Trauma and Plastic Surgery, University Hospital Carl Gustav Carus, Technical University Dresden, Dresden, Germany
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A Novel Biofilm-Disrupting Wound Care Technology for the Prevention of Surgical Site Infections Following Total Joint Arthroplasty: A Conceptual Review. Surg Technol Int 2021. [PMID: 34005832 DOI: 10.52198/21.sti.38.os1447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Surgical site infections (SSIs) are a major driver for increased costs following lower extremity joint arthroplasty procedures. It has been estimated that these account for over $2 billion in annual costs in the United States. While many of the current strategies for the prevention and treatment of SSIs target planktonic bacteria, 80 to 90% of bacterial pathogens exist in a sessile state. These sessile bacteria can produce extracellular polymeric substance (EPS) as protective barriers from host immune defenses and antimicrobial agents and thus, can be exceedingly difficult to eradicate. A novel wound care gel that disrupts the EPS and destroys the inciting pathogens has been developed for the treatment and prevention of biofilm-related infections. This is achieved by the simultaneous action of four key ingredients: (1) citric acid; (2) sodium citrate; (3) benzalkonium chloride; and (4) polyethylene glycol. Together, these constituents create a high osmolarity, pH-controlled environment that deconstructs and prevents biofilm formation, while destroying pathogens and promoting a moist environment for optimal wound healing. The available clinical evidence demonstrating the efficacy of this technology has been summarized, as well as the economic implications of its implementation and the authors' preferred method of its use. Due to the multifaceted burden associated with biofilm-producing bacteria in arthroplasty patients, this technology may prove to be beneficial for patients who have higher risks for infection, or perhaps, as a prophylactic measure to prevent infections for all patients.
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